Finding the Fourth Proportional to 83,138,831.20, 124,708,246.80 and 62,983,439.20
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Solution
The fourth proportional to 83,138,831.20, 124,708,246.80 and 62,983,439.20 is: 94,475,158.80
Step by Step Solution
- Step 1: Write the proportion equation
83,138,831.20 : 124,708,246.80 = 62,983,439.20 : x - Step 2: Convert to fraction form
83,138,831.20/124,708,246.80 = 62,983,439.20/x - Step 3: Cross multiply
83,138,831.20x = 124,708,246.80 × 62,983,439.20 - Step 4: Simplify right side
83,138,831.20x = 7,854,554,280,066,395 - Step 5: Solve for x
x = 7,854,554,280,066,395/83,138,831.20 - Step 6: Final answer
x = 94,475,158.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.